32 Thread support library [thread]

32.3 Stop tokens [thread.stoptoken]

32.3.3 Class stop_­token [stoptoken]

32.3.3.2 Constructors, copy, and assignment [stoptoken.cons]

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stop_token() noexcept;
1
#
Postconditions: stop_­possible() is false and stop_­requested() is false.
[Note 1:
Because the created stop_­token object can never receive a stop request, no resources are allocated for a stop state.
— end note]
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stop_token(const stop_token& rhs) noexcept;
2
#
Postconditions: *this == rhs is true.
[Note 2:
*this and rhs share the ownership of the same stop state, if any.
— end note]
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stop_token(stop_token&& rhs) noexcept;
3
#
Postconditions: *this contains the value of rhs prior to the start of construction and rhs.stop_­possible() is false.
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~stop_token();
4
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Effects: Releases ownership of the stop state, if any.
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stop_token& operator=(const stop_token& rhs) noexcept;
5
#
Effects: Equivalent to: stop_­token(rhs).swap(*this).
6
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Returns: *this.
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stop_token& operator=(stop_token&& rhs) noexcept;
7
#
Effects: Equivalent to: stop_­token(std​::​move(rhs)).swap(*this).
8
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Returns: *this.
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void swap(stop_token& rhs) noexcept;
9
#
Effects: Exchanges the values of *this and rhs.